Mr Roberts, you have some good points. I wonder, however, if flashlight techniques are more valuable for law enforcement applications or when the power is out as opposed to a homeowner searching his own house for a potential burglar? I don't have the answer to that. I still wonder whether a homeowner should search his own house in the dark for no reason or if it makes more sense to turn on lights as he goes.
I guess this thread has me thinking, which is good. I'll do some experiments in my house in the next couple days and see what would work best in my situation. I have small nightlights on in various rooms throughout the house too. Don't know if that changes anything or not.